It's hard to say for sure. Only they really know. I would guess no though. I think all of these marriage and living together rumors are being created by the tabloids to sell magazines. Unlike some I won't believe they are even dating or are anything more than friends until one or both of them confirm it. I can still hope that they are together or will be one day! :)
They were never together in the first place, they have said constantly that they are not dating. Don't you think if they were together that there would be pics with the paparazzi following them. And if they were actually dating or engaged why would they hide it or deny it.
I have heard that they were datin once, then they broke up, and now I heard they were back together. If for some reason they had ever said that they weren't datin i think they were doing that to avoid rumors that would hurt their pride.
I honestly don't think so. I don't believe that they were ever together in the first place. I mean, there may have been some flirting going on, but that was it. I used to think they were together and that they were one of the cutest couples EVER, but when you come to think about it, do you honestly think they could live that long without people finding some kind of proof? Oh, and I saw a People magazine cover once that said they were getting married, but the article ended up being about the Breaking Dawn wedding!